We are given the function
[tex]|x\text{ -3\mid+1}[/tex]and asked to check from which function this came from. We solve this by comparison
THe square root function looks like this
[tex]\sqrt{x}[/tex]the quadratic function looks like this
[tex]x^2[/tex]a linear function looks like this
[tex]ax+b[/tex]and the absolute value function looks like this
[tex]|x|[/tex]the only function that looks alike is the absolute value function. So the correct answer is the absolute value function